Guys, thanks for the quick replies.
No I am not going to be adding a lot of electrical things (at least not in my mind). I do want to add a 3rd brake light, bed light, updated radio and air conditioning.
I just wanted to hear the type of response that I am hearing (don't want to do all this and find out it could fail). As you know, it's hard to get the smoke back inside the wires :-).